.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 24px;
    background: #fff;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    position: relative;
    z-index: 100;
}

.nav-left {
    display: flex;
    gap: 36px;
}

.nav-item {
    cursor: pointer;
    color: #666;
    padding: 8px 12px;
    border-radius: 4px;
    transition: all 0.3s;
}

.nav-item.active {
    background: #1890ff;
    color: white;
}

.nav-item:hover {
    color: #1890ff;
}

.nav-item.active:hover {
    background: #40a9ff;
    color: white;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 12px;
    position: relative;
    cursor: pointer;
}

.avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: #1890ff url('../assets/images/avatar-placeholder.png') no-repeat center;
    background-size: cover;
}

.user-dropdown {
    display: none;
    position: absolute;
    top: 50px;
    right: 0;
    background: #fff;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    border-radius: 8px;
    padding: 16px;
    z-index: 200;
    width: 200px;
}

.user-dropdown div {
    margin-bottom: 8px;
}

.user-dropdown button {
    width: 100%;
    padding: 8px 16px;
    background: #1890ff;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s;
    margin-top: 8px;
}

.user-dropdown button:hover {
    background: #40a9ff;
}

.upload-avatar {
    text-align: center;
    margin-top: 8px;
}

.upload-avatar img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    margin-bottom: 8px;
}

.upload-avatar a {
    color: #1890ff;
    cursor: pointer;
    text-decoration: none;
}

.upload-avatar a:hover {
    text-decoration: underline;
}

.change-password-container {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.5);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 300;
}

.change-password-form {
    background: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    width: 300px;
}

.change-password-form div {
    margin-bottom: 12px;
}

.change-password-form input {
    width: calc(100% - 80px);
    padding: 8px;
    margin-right: 8px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.change-password-form button {
    width: 100%;
    padding: 8px 16px;
    background: #1890ff;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s;
    margin-top: 8px;
}

.change-password-form button:hover {
    background: #40a9ff;
}